<template>
	<div class="app-container">
		<mt-header fixed title="黑马程序员-vue项目"> 
      <!-- 返回按钮 -->
      <span slot="left" @click="goBack" v-show="flag">
        <mt-button icon="back">返回</mt-button>
      </span>
    </mt-header>

		<transition>
			<router-view></router-view>
		</transition>
		
		<nav class="mui-bar mui-bar-tab" id="nav-box">
			<router-link class="mui-tab-item-lib" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link  class="mui-tab-item-lib" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link  class="mui-tab-item-lib" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart">
	                    <span class="mui-badge" id="badge">{{$store.getters.getAllCount}}</span>
				</span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link  class="mui-tab-item-lib" to="/search">
				<span class="mui-icon mui-icon-gear"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
	</div>
</template>

<script>
export default {
  data(){
    return {
      flag:false
    }
  },
  methods:{
    goBack(){
      this.$router.go(-1);
    }
  },
  created(){
    this.flag=this.$route.path==='/home'?false:true
  },
  watch:{
    "$route.path":function(newVal){
      if(newVal==="/home"){
        this.flag=false
      }else{
        this.flag=true
      }
    }
  }
};
</script>

<style lang="less" scoped>

.mint-header{
	z-index: 99;
}

* {
  touch-action: pan-y;
   -webkit-overflow-scrolling: touch; 
}
.app-container {
  padding-top: 40px;
  padding-bottom: 50px;
  overflow-x: hidden;
}

.v-enter {
  opacity: 0;
  transform: translateX(100%);
}
.v-leave-to {
  opacity: 0;
  transform: translateX(-100%);
  position: absolute;
}
.v-enter-active,
.v-leave-active {
  transition: all .5s ease-in-out;
}

/* tabbar类名的更改 */
.mui-bar-tab .mui-tab-item-lib.mui-active {
  color: #007aff;
}

.mui-bar-tab .mui-tab-item-lib {
  display: table-cell;
  overflow: hidden;
  width: 1%;
  height: 50px;
  text-align: center;
  vertical-align: middle;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: #929292;
}
.mui-bar-tab .mui-tab-item-lib .mui-icon {
  top: 3px;
  width: 24px;
  height: 24px;
  padding-top: 0;
  padding-bottom: 0;
}

.mui-bar-tab .mui-tab-item-lib .mui-icon ~ .mui-tab-label {
  font-size: 11px;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}


.fixed{
  top:0;
}

// .app-container{
//     width:100%;
//     height:100%;
// }
#nav-box{
  position: fixed;
  z-index:99;
  bottom:0;
}
</style>

